Instructables

this simple and cheep rocket launcher uses NO EXXPLOSIVES , only water and air pressure and is made with PVC pipe.
if you want to build it click http://www.thisoldhouse.com/toh/video/0,,20263020,00.html for a video
if you want instructions, click http://www.thisoldhouse.com/toh/how-to/intro/0,,20258045,00.html  
have fun!

hrodriguez7 (author) 2 years ago
the triger relese system looks a bit difficult, bit i'm working on a simpler, more portable version.
i'll let you guys know whn I finish it!
jliberman133 years ago
Looks deadly! No, just kiding about the deadly, but it really does look cool. Sadly I have never really gotten into water rockets. Never got how they worked.
hrodriguez7 (author)  jliberman133 years ago
basicly, you fill it up with air, this one is about 70 PSI. when you pull the trigger,the air comes out from a very small space. to keep it simple, all that air(70 PSI is quite a bit of air for such a small space) wants OUT! and it pushes the bottle upwards. LOL i'm a big nerd, so if this doesnt help very much, i encoage you to watch the video.
hope this helps!
;)
oh, i get it. it uses air, not water. why then does it say, air water rocket launcher? is it for water bottle rockets?
hrodriguez7 (author)  jliberman133 years ago
well, this one uses 2 liter soda bottle. I guess i should rename it, "The Soda Bottle Rocket Launcher!!!!!!". I guess i named it that because you fill the bottle with 1/3 water.......